Bio-Gel A Agarose 1.5m Gel is ideal for purification of antibodies and aggregates and consists of agarose beads in which the pore size is controlled by the percentage of agarose in the gel. This support is compatible with all commonly used buffers and can be used with high-salt buffers without significantly changing the bed volume. Bio-Gel A 1.5m gel may be used at pH 4–13 and at 2–30°C. The fractionation range is from 10,000 to 1,500,000.